Bell System Technical Journal · 1938 · 10 citations · 0 references
EngineeringCommunicationElectrical EngineeringChannel ManagementCircuit TheoryTransportation EngineeringCommunication SystemsCommunications SubsystemsTelephone HandlingTelephone OperationsTransmission LinesCable SystemsTelecommunication InfrastructureTelecommunications Network DesignTelecommunications NetworksTelephone SystemsTelephony SystemsTerminal CharacterizationToll Systems
This paper describes the circuits, performance and equipment features of the terminals of a new 12-channel carrier system for application to existing toll cables. The 12-channel group of terminal apparatus has been designed also to form a basic part of the terminals of other carrier systems now under development, such as the type J system for open wire and the coaxial system.